Katy Perry solemn in Grammy's anthem for domestic violence survivors

LOS ANGELES, Feb. 9 (UPI) -- Singer Katy Perry stripped off her purple tresses and colorful outfits for her performance of "By The Grace of God" at the Grammy Awards on Sunday.

The song was plugged as an anthem for domestic abuse survivors and followed remarks by President Barack Obama and domestic violence activist Brooke Axtell.

Perry performed the ballad -- a song about her dealing with suicidal thoughts after her divorce -- standing in front of a series of shadows in an off-white caped dress with her long dark hair in a serious pony tail.

"By The Grace of God" appears on Perry's fourth album, Prism. The album, along with her single "Dark Horse," were nominated in the pop categories at the award show.

Following her Super Bowl and Grammy performances, Perry is set to kick off the last leg of her Prismatic World Tour in Europe and Asia.